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Light earthquake: M4.5 quake has struck near Ixhuatan in Mexico



Earthquake location 16.4564S, -94.5201WA light earthquake magnitude 4.5 (ml/mb) has struck on Thursday, 11 kilometers (7 miles) from Ixhuatan in Mexico. Unique identifier: us2000a20c. Ids that are associated to the event: us2000a20c. The temblor was reported at 16:56:03 / 4:56 pm (local time epicenter). The epicenter was at a depth of 107.09 km (67 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -94.5201° West, latitude 16.4564° North, depth = 107.09 km. Global date and time of event UTC/GMT: 27/07/17 / 2017-07-27 22:56:03 / July 27, 2017 @ 10:56 pm.

Nearby country/countries that might be effected, Mexico (c. 112 469 000 pop). Epicenter of the event was 79 km (49 miles) from Salina Cruz (c. 73 600 pop), 53 km (33 miles) from Juchitán de Zaragoza (c. 67 600 pop), 78 km (49 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 89 km (55 miles) from Cintalapa de Figueroa (c. 33 500 pop), 91 km (57 miles) from Tonalá (c. 32 900 pop), 64 km (39 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 70 km (44 miles) from Arriaga (c. 22 800 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Jiquipilas, Tonalá, Cintalapa de Figueroa.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days two and in the last 365 days twenty-four earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 11 km NNW of Ixhuatan, Mexico.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -94.5201° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.4564° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 107.09 km Depth of the event in kilometers.
Place 11km NNW of Ixhuatan, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-27 22:56:03 Time when the event occurred. UTC/GMT
Updated 2017-07-27 23:29:43 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 312 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.116 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 173 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000a20c Id of event.
Event Code 2000a20c An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a20c, A comma-separated list of event ids that are associated to an event.

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